import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

/* Layout */
import Layout from '@/layout'
// 组织
import Department from './modules/department'
// 角色
import Role from './modules/role'
// 员工
import Employee from './modules/employee'
// 权限
import Permission from './modules/permission'
// 考勤
import Attendance from './modules/attendance'
// 审批
import Approval from './modules/approval'
// 工资
import Salary from './modules/salary'
// 社保
import Social from './modules/social'

/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * constantRoutes
 * a base page that does not have permission requirements
 * all roles can be accessed 静态路由，无需权限
 */
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login/index'),
    hidden: true
  },

  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },

  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [{
      path: 'dashboard',
      name: 'Dashboard',
      component: () => import('@/views/dashboard/index'),
      meta: { title: '首页', icon: 'dashboard' }
    }]
  }
  // 404 page must be placed at the end !!!
  // { path: '*', redirect: '/404', hidden: true }
]

// 动态路由，需要权限才能访问
export const asyncRoutes = [
  Department,
  Role,
  Employee,
  Permission,
  Attendance,
  Approval,
  Salary,
  Social
]

const createRouter = () => new Router({
  // 更改路由模式为history模式
  // hash 与 history 的不同:
  // 1. 外观层面: hash模式: #/ history模式: /
  // 2. 刷新层面: hash模式: 不会刷新页面 history模式: 会刷新页面
  // 3. 上线层面: hash模式不需要后端配置，history模式需要后端配置，不然会显示404
  mode: 'history', //  require service support
  scrollBehavior: () => ({ y: 0 }),
  routes: constantRoutes
})

const router = createRouter()

// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
// 重置路由
// 如果用户权限变更，需要重新加载路由配置器
// 应用升级或配置更新
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}

export default router
